LP2986AIMM-3.3 Equivalent & Substitute Parts

Part Overview

The LP2986AIMM-3.3 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications with 200mA current capacity in an 8-VSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The LP2986 series provides micropower regulation with integrated protection features including over-current, over-temperature, and short-circuit protection, suitable for battery-powered and low-power embedded systems requiring stable 3.3V rails.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	3.3V
Output Current	200mA
Input Voltage (Max)	16V
Dropout Voltage (Max)	0.35V @ 200mA
Quiescent Current	120 µA
PSRR	65dB (1kHz)
Package	8-VSSOP (8-TSSOP, 8-MSOP, 0.118" / 3.00mm Width)
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable

Substitute Part Grouping Explanation

Substitution for the LP2986AIMM-3.3 is determined by strict equivalence across the following electrical and mechanical parameters:

Fixed output voltage of 3.3V
Output current rating of 200mA
Maximum input voltage of 16V
Dropout voltage specification of 0.35V @ 200mA
Quiescent current of 120 µA
PSRR of 65dB (1kHz)
8-VSSOP package configuration
Operating temperature range of -40°C to 125°C
Identical protection features (Over Current, Over Temperature, Short Circuit)
Enable control feature

All substitute parts listed maintain these exact electrical specifications and physical package requirements. Differences in product status, RoHS compliance, and packaging format (Tape & Reel vs. Bulk) do not affect functional equivalence but may impact procurement and regulatory requirements.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Package	Operating Temp	Product Status	RoHS Status	Packaging Format
LP2986AIMM-3.3	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Obsolete	RoHS non-compliant	Bulk
LP2986AIMM-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Active	ROHS3 Compliant	Tape & Reel (TR)
LP2986IMM-3.3/NOPB	National Semiconductor	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Active	Not specified	Bulk
LP2987IMM-3.3/NOPB	National Semiconductor	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Active	Not specified	Bulk
LP2987IMMX-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Active	ROHS3 Compliant	Tape & Reel (TR)
LP2988AIMM-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Active	ROHS3 Compliant	Tape & Reel (TR)
LP2988IMM-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Active	ROHS3 Compliant	Tape & Reel (TR)
LP2988IMMX-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Active	ROHS3 Compliant	Tape & Reel (TR)

Engineering Selection Recommendations

For new designs and production applications, LP2986AIMM-3.3/NOPB is the direct equivalent with active product status and ROHS3 compliance. This part maintains identical electrical specifications while offering improved regulatory compliance and availability compared to the obsolete original.

For applications requiring Texas Instruments sourcing with active status, LP2987IMMX-3.3/NOPB, LP2988AIMM-3.3/NOPB, LP2988IMM-3.3/NOPB, and LP2988IMMX-3.3/NOPB are functionally equivalent alternatives. All active substitutes carry ROHS3 compliance certification.

LP2986IMM-3.3/NOPB and LP2987IMM-3.3/NOPB from National Semiconductor provide functional equivalence with active product status, though RoHS compliance information is not specified for these variants.

Packaging format selection between Tape & Reel and Bulk depends on production volume and assembly requirements; electrical performance remains identical across all packaging options.

Frequently Asked Questions (FAQ)

Q: Can LP2986AIMM-3.3/NOPB directly replace the obsolete LP2986AIMM-3.3?

A: Yes. LP2986AIMM-3.3/NOPB is the direct parametric equivalent with identical electrical specifications, output voltage, current rating, and package configuration. The primary differences are active product status and ROHS3 compliance.

Q: What is the difference between LP2987 and LP2988 variants in this substitution list?

A: All LP2987 and LP2988 variants maintain identical electrical parameters to the LP2986AIMM-3.3, including 3.3V output, 200mA current, and 8-VSSOP packaging. Substitution is based on electrical equivalence rather than part number series designation.

Q: Does packaging format (Tape & Reel vs. Bulk) affect electrical performance?

A: No. Packaging format affects only procurement, handling, and assembly logistics. Electrical specifications and performance remain identical regardless of whether the part is supplied in Tape & Reel or Bulk format.

Q: Are all substitute parts ROHS3 compliant?

A: Texas Instruments variants (LP2986AIMM-3.3/NOPB, LP2987IMMX-3.3/NOPB, LP2988AIMM-3.3/NOPB, LP2988IMM-3.3/NOPB, LP2988IMMX-3.3/NOPB) are ROHS3 compliant. National Semiconductor variants (LP2986IMM-3.3/NOPB, LP2987IMM-3.3/NOPB) do not specify RoHS compliance status.

Q: Can I use these substitutes in existing PCB designs without layout modifications?

A: Yes. All substitute parts use the identical 8-VSSOP package with matching pin configuration and physical dimensions (0.118" / 3.00mm width), allowing direct PCB footprint compatibility.

Q: What protection features are included in all substitute parts?

A: All substitute parts include over-current protection, over-temperature protection, and short-circuit protection with enable control functionality.

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